ResearchRouting table, RPKI, IRR & looking glass

AS27390 Fred Alger & Co Inc.

AS27390 (ALGAS) is registered to Fred Alger & Co Inc. in US. It originates 2 prefixes in the global routing table.

2
IPv4 prefixes
0
IPv6 prefixes
512
IPv4 addresses
0%
RPKI valid

Who holds AS27390

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS27390
Handle
ALGAS
Organization
Fred Alger & Co Inc.
Country
US
ASPA
None published

What AS27390 announces

Prefixes originated by AS27390 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
2
IPv6 prefixes
0
IPv4 addresses
512 (2 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
2
ROAs naming AS27390
0
With an IRR route object
2 100%

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (2)

RPKI valid   RPKI invalid   no ROA covers it

Who AS27390 is reached through

The AS just before AS27390 in the paths our looking glass collectors hold, for 2 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
ALTDBTELX-AS27390MAINT-TELX

Route objects with origin AS27390: RADB 5 · LEVEL3 2 · ALTDB 1

as-sets that list AS27390 (10)